condition mean min max ZT0-3 1.3013474999999999 0.360785 2.24191 ZT4-7 2.34231 2.34231 2.34231 ZT8-11 5.33319 5.33319 5.33319 ZT12-15 0 0 0 ZT16-19 1.6890625000000001 1.6890625000000001 1.6890625000000001 ZT20-23 0.2056665 0.2056665 0.2056665